Elevation of Constantius Chlorus as Augustus

Constantius Chlorus was elevated to the rank of Augustus on May 1st, 305, following the abdication of the previous Tetrarchs, Diocletian and Maximian. This event marked a significant transition in the governance structure of the Roman Empire under the Tetrarchy system.

The elevation was part of a planned succession aiming to stabilize the empire by sharing power between senior and junior emperors. Constantius, who governed the western provinces, gained equal rank to the other Augusti, solidifying his authority within the Roman political hierarchy.

This development played an important role in the eventual reunification of the empire, influencing subsequent imperial politics and the rise of his son, Constantine the Great.